A new species of the mygalomorph spider genus Euagrus Ausserer (Araneae: Euagridae) from central Mexico and new records of E. gus Coyle from Tlaxcala

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  A new species of the mygalomorph spider genus Euagrus Ausserer (Araneae: Euagridae) from central Mexico and new records of E. gus Coyle from Tlaxcala Abstract  A new species of the spider genus Euagrus Ausserer, 1875 from temperate pine-oak forests in the states of Tlaxcala and Hidalgo, Mexico is described: E. pulque sp. nov. The description of the new species is based on male and female adult specimens. Additionally, Euagrus gus Coyle, 1988 is recorded for the very first time in the state of Tlaxcala. These species have sympatric distributions in La Malinche National Park, Tlaxcala. With this description, the diversity of the genus increases to 23 species, with Mexico harboring the highest diversity with 17 described species.  Valdez-Mondragón, A., Salinas-Velasco, H. V. & Bueno-Villegas, J. (2026). A new species of the mygalomorph spider genus Euagrus Ausserer (Araneae: Euagridae) from central Mexico and new records of E. gus Coyle from Tlaxcala. Zootaxa 5810 (...

First record of Aenigmarachne Schmidt, 2005 (Araneae: Theraphosidae) from Colombia, with the description of a new species and the first described female

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First record of Aenigmarachne Schmidt, 2005 (Araneae: Theraphosidae) from Colombia, with the description of a new species and the first described female

Abstract

The previously monotypic genus Aenigmarachne Schmidt, 2005, known only from a single male specimen collected presumably in Isla el Coco, Costa Rica, is reported here for the first time in Colombia, with the description of a new species based on male and female specimens. Thus, we expand the known geographic range of the genus and enhance our understanding of Theraphosinae diversity in northern South America and Colombia. Additionally, we provide detailed observations on the urticating setae in the species and discuss aspects of its natural history.

Osorio, L.M., Polo, J.S. Ávila, Sabbatino, A.F. & Martínez, L.A.S. (2025) First record of Aenigmarachne Schmidt, 2005 (Araneae: Theraphosidae) from Colombia, with the description of a new species and the first described female. Zootaxa, 5723 (4), 550–564. https://doi.org/10.11646/zootaxa.5723.4.5